mirror/tinyusb
1
0
Fork 0
mirror of https://github.com/hathach/tinyusb.git synced 2025-03-14 13:21:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

more clean up

Browse Source
This commit is contained in:
hathach 2021-11-23 09:52:11 +07:00
parent 0fc11746c0
commit c9e9f4785f
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/portable/nordic/nrf5x/dcd_nrf5x.c
View File

@ -82,9 +82,8 @@ static struct
// +1 for ISO endpoints
xfer_td_t xfer[EP_CBI_COUNT + 1][2];
// Number of pending DMA that is started but not handled yet by dcd_int_handler().
// Since nRF can only carry one DMA can run at a time, this value is normally be either 0 or 1.
volatile uint8_t dma_pending;
// nRF can only carry one DMA at a time, this is used to guard the access to EasyDMA
volatile bool dma_running;
}_dcd;
/*------------------------------------------------------------------*/
@ -115,7 +114,7 @@ TU_ATTR_ALWAYS_INLINE static inline bool is_in_isr(void)
// helper to start DMA
static void start_dma(volatile uint32_t* reg_startep)
{
_dcd.dma_pending = true;
_dcd.dma_running = true;
(*reg_startep) = 1;
__ISB(); __DSB();
@ -125,7 +124,7 @@ static void start_dma(volatile uint32_t* reg_startep)
// Therefore dma_pending is corrected right away
if ( (reg_startep == &NRF_USBD->TASKS_EP0STATUS) || (reg_startep == &NRF_USBD->TASKS_EP0RCVOUT) )
{
_dcd.dma_pending = false;
_dcd.dma_running = false;
}
}
@ -137,7 +136,7 @@ static void edpt_dma_start(volatile uint32_t* reg_startep)
// Called in critical section i.e within USB ISR, or USB/Global interrupt disabled
if ( is_in_isr() || __get_PRIMASK() || !NVIC_GetEnableIRQ(USBD_IRQn) )
{
if (_dcd.dma_pending)
if (_dcd.dma_running)
{
//use usbd task to defer later
usbd_defer_func((osal_task_func_t) edpt_dma_start, (void*) (uintptr_t) reg_startep, true);
@ -157,7 +156,7 @@ static void edpt_dma_start(volatile uint32_t* reg_startep)
// use osal mutex to guard against multiple core MCUs such as nRF53
dcd_int_disable(rhport);
if ( !_dcd.dma_pending )
if ( !_dcd.dma_running )
{
start_dma(reg_startep);
started = true;
@ -173,8 +172,8 @@ static void edpt_dma_start(volatile uint32_t* reg_startep)
// DMA is complete
static void edpt_dma_end(void)
{
TU_ASSERT(_dcd.dma_pending, );
_dcd.dma_pending = false;
TU_ASSERT(_dcd.dma_running, );
_dcd.dma_running = false;
}
// helper getting td